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** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
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** GNU General Public License Usage
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** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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#pragma once

#include <QObject>
#include <QStack>

namespace Valgrind {
namespace Callgrind {

class Function;

class StackBrowser : public QObject
{
    Q_OBJECT

public:
    explicit StackBrowser(QObject *parent = 0);

    void select(const Function *item);
    const Function *current() const;
    void clear();
    bool hasPrevious() const { return !m_stack.isEmpty(); }
    bool hasNext() const { return !m_redoStack.isEmpty(); }

    void goBack();
    void goNext();

signals:
    void currentChanged();

private:
    QStack<const Function *> m_stack;
    QStack<const Function *> m_redoStack;
};

} // namespace Callgrind
} // namespace Valgrind
